Patents by Inventor Christopher Fred Keimel
Christopher Fred Keimel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170066645Abstract: A system and method for a micro-electrical-mechanical system (MEMS) device including a substrate and a free-standing and suspended electroplated metal MEMS structure formed on the substrate. The free-standing and suspended electroplated metal MEMS structure includes a metal mechanical element mechanically coupled to the substrate and a seed layer mechanically coupled to and in electrical communication with the mechanical element, the seed layer comprising at least one of a refractory metal and a refractory metal alloy, wherein a thickness of the mechanical element is substantially greater than a thickness of the seed layer such that the mechanical and electrical properties of the free-standing and suspended electroplated metal MEMS structure are defined by the material properties of the mechanical element.Type: ApplicationFiled: September 3, 2015Publication date: March 9, 2017Inventors: Joleyn Eileen Brewer, Christopher Fred Keimel, Marco Francesco Aimi, Andrew Minnick, Renner Stephen Ruffalo
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Publication number: 20170067742Abstract: A gyroscope includes at least one anchor and a plurality of gyroscope spring elements coupled to the at least one anchor. The gyroscope also includes a plurality of concentric rings coupled to the plurality of gyroscope spring elements and configured to encircle the plurality of gyroscope spring elements. The gyroscope further includes an excitation/detection/tuning unit electrostatically coupled to the plurality of concentric rings.Type: ApplicationFiled: November 4, 2015Publication date: March 9, 2017Inventors: Sergey Alexandrovich Zotov, Christopher Fred Keimel, Todd Frederick Miller, Yizhen Lin
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Publication number: 20170062889Abstract: A radio frequency (RF) microelectromechanical system (MEMS) package includes a first mounting substrate, a signal line formed on a top surface of the first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and a ground assembly coupled to the first mounting substrate. The ground assembly includes a second mounting substrate, a ground plane formed on a bottom surface of the second mounting substrate, and at least one electrical interconnect extending through a thickness of the second mounting substrate to contact the ground plane, wherein the ground plane is spaced apart from the signal line.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
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Publication number: 20170062890Abstract: A RF MEMS package includes a MEMS die assembly having a signal line formed on a top surface of a first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
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Patent number: 9570783Abstract: A RF MEMS package includes a MEMS die assembly having a signal line formed on a top surface of a first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.Type: GrantFiled: August 28, 2015Date of Patent: February 14, 2017Assignee: General Electric CompanyInventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
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Patent number: 9465160Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.Type: GrantFiled: August 20, 2013Date of Patent: October 11, 2016Assignee: General Electric CompanyInventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra
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Publication number: 20160220158Abstract: An array of emitters includes a device substrate having first and second sides, a thermally and electrically conductive layer disposed on the first side of the device substrate, and an interconnect layer disposed on a first plurality of portions of the second side of the device substrate. The array of the emitters further includes a plurality of emitters disposed in a second plurality of portions of the device substrate, where the plurality of emitters is electrically coupled to the thermally and electrically conductive layer. Also, the array of the emitters includes a plurality of wirebond contacts configured to electrically couple a portion of the interconnect layer to a corresponding emitter of the plurality of emitters, and a plurality of encapsulations, where one or more encapsulations of the plurality of encapsulations are disposed on at least a portion of a corresponding wirebond contact of the plurality of wirebond contacts.Type: ApplicationFiled: April 7, 2016Publication date: August 4, 2016Inventors: Jason Harris Karp, Christopher James Kapusta, Paul Jeffrey Gillespie, Christopher Fred Keimel, Jeffrey Michael Ashe, James Enrico Sabatini
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Publication number: 20160164161Abstract: An ohmic RF MEMS relay includes a substrate with a capacitive coupling, Csub; two actuating elements electrically coupled in series, so as to define a channel, wherein the actuating elements are configured to be independently actuated or simultaneously operated. The actuating elements have their own capacitive coupling, Cgap; a midpoint on the channel is in electrical communication with the actuating elements; and an anchor mechanically coupled to the substrate and supporting at least one of the actuating elements. Also, an ohmic RF MEMS relay that includes an input port; a plurality of first MEMS switches that make up a first switching group in electrical communication with the input port, thereby defining a plurality of channels each leading from each of the MEMS switches; and at least one outlet port along each of the channels distal from the first switching group and in electrical communication with the input port.Type: ApplicationFiled: December 3, 2014Publication date: June 9, 2016Inventors: Yongjae Lee, Marco Francesco Aimi, Glenn Scott Claydon, Christopher Fred Keimel
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Patent number: 9362608Abstract: An ohmic RF MEMS relay includes a substrate with a capacitive coupling, Csub; two actuating elements electrically coupled in series, so as to define a channel, wherein the actuating elements are configured to be independently actuated or simultaneously operated. The actuating elements have their own capacitive coupling, Cgap; a midpoint on the channel is in electrical communication with the actuating elements; and an anchor mechanically coupled to the substrate and supporting at least one of the actuating elements. Also, an ohmic RF MEMS relay that includes an input port; a plurality of first MEMS switches that make up a first switching group in electrical communication with the input port, thereby defining a plurality of channels each leading from each of the MEMS switches; and at least one outlet port along each of the channels distal from the first switching group and in electrical communication with the input port.Type: GrantFiled: December 3, 2014Date of Patent: June 7, 2016Assignee: General Electric CompanyInventors: Yongjae Lee, Marco Francesco Aimi, Glenn Scott Claydon, Christopher Fred Keimel
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Patent number: 9188113Abstract: A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.Type: GrantFiled: December 7, 2013Date of Patent: November 17, 2015Assignee: General Electric CompanyInventors: Christopher Michael Puleo, Christopher Fred Keimel, Craig Patrick Galligan
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Patent number: 9103331Abstract: An electroosmotic pump comprises a plurality of membranes comprising one or more positive electroosmotic membranes and one or more negative electroosmotic membranes, a plurality of electrodes comprising cathodes and anodes, and a power source. Each of the positive electroosmotic membranes and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on other side of the membrane. At least one of the cathodes or anodes is disposed between a positive electroosmotic membrane and negative electroosmotic membrane.Type: GrantFiled: December 15, 2011Date of Patent: August 11, 2015Assignee: General Electric CompanyInventors: Christopher Michael Puleo, Christopher Fred Keimel, Xiaohui Chen, Ralf Lenigk, Craig Patrick Galligan, Todd Frederick Miller
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Publication number: 20150133753Abstract: An array of emitters includes a device substrate having first and second sides, a thermally and electrically conductive layer disposed on the first side of the device substrate, and an interconnect layer disposed on a first plurality of portions of the second side of the device substrate. The array of the emitters further includes a plurality of emitters disposed in a second plurality of portions of the device substrate, where the plurality of emitters is electrically coupled to the thermally and electrically conductive layer. Also, the array of the emitters includes a plurality of wirebond contacts configured to electrically couple a portion of the interconnect layer to a corresponding emitter of the plurality of emitters, and a plurality of encapsulations, where one or more encapsulations of the plurality of encapsulations are disposed on at least a portion of a corresponding wirebond contact of the plurality of wirebond contacts.Type: ApplicationFiled: November 14, 2013Publication date: May 14, 2015Applicant: General Electric CompanyInventors: Jason Harris Karp, Christopher James Kapusta, Paul Jeffrey Gillespie, Christopher Fred Keimel, Jeffrey Michael Ashe, James Enrico Sabatini
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Publication number: 20150055924Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.Type: ApplicationFiled: August 20, 2013Publication date: February 26, 2015Applicant: General Electric CompanyInventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra
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Patent number: 8802475Abstract: A method of fabricating a microelectronic device structure including increased thermal dissipation capabilities. The structure including a three-dimensional (3D) integrated chip assembly that is flip chip bonded to a substrate. The chip assembly including a device substrate including an active device disposed thereon. A cap layer is physically bonded to the device substrate to at least partially define a hermetic seal about the active device. The microelectronic device structure provides a plurality of heat dissipation paths therethrough to dissipate heat generated therein.Type: GrantFiled: February 21, 2014Date of Patent: August 12, 2014Assignee: General Electric CompanyInventors: Kaustubh Ravindra Nagarkar, Christopher Fred Keimel
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Patent number: 8779886Abstract: A device, such as a switch structure, is provided. The switch structure can include a contact and a conductive element each respectively disposed on a substrate. The conductive element can be composed substantially of metallic material, and can be configured to be deformable between a first position, in which the conductive element is separated from the contact by a separation distance, and a second position, in which the conductive element contacts the contact and stores mechanical energy. The conductive element can be further configured such that, subsequent to being deformed into the second position at a temperature between about room temperature and about half of a melting temperature of the metallic material for a cumulative time of at least 107 seconds, the separation distance in the absence of external forces varies by less than 20 percent over the cumulative time. Associated methods are also provided.Type: GrantFiled: November 30, 2009Date of Patent: July 15, 2014Assignee: General Electric CompanyInventors: Marco Francesco Aimi, Shubhra Bansal, Christopher Fred Keimel, Kuna Venkat Satya Rama Kishore, Sairam Sundaram, Parag Thakre
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Publication number: 20140190831Abstract: A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.Type: ApplicationFiled: December 7, 2013Publication date: July 10, 2014Applicant: General Electric CompanyInventors: Christopher Michael Puleo, Christopher Fred Keimel, Craig Patrick Galligan
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Publication number: 20140170811Abstract: A method of fabricating a microelectronic device structure including increased thermal dissipation capabilities. The structure including a three-dimensional (3D) integrated chip assembly that is flip chip bonded to a substrate. The chip assembly including a device substrate including an active device disposed thereon. A cap layer is physically bonded to the device substrate to at least partially define a hermetic seal about the active device. The microelectronic device structure provides a plurality of heat dissipation paths therethrough to dissipate heat generated therein.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: General Electric CompanyInventors: Kaustubh Ravindra Nagarkar, Christopher Fred Keimel
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Patent number: 8698258Abstract: A microelectronic device structure including increased thermal dissipation capabilities. The structure including a three-dimensional (3D) integrated chip assembly that is flip chip bonded to a substrate. The chip assembly including a device substrate including an active device disposed thereon. A cap layer is physically bonded to the device substrate to at least partially define a hermetic seal about the active device. The microelectronic device structure provides a plurality of heat dissipation paths therethrough to dissipate heat generated therein.Type: GrantFiled: September 30, 2011Date of Patent: April 15, 2014Assignee: General Electric CompanyInventors: Kaustubh Ravindra Nagarkar, Christopher Fred Keimel
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Patent number: 8659326Abstract: A switching apparatus, as may be configured to actuate stacked MEMS switches, may include a switching circuitry (34) including a MEMS switch (36) having a beam (16) made up of a first movable actuator (17) and a second movable actuator (19) electrically connected by a common connector (20) and arranged to selectively establish an electrical current path through the first and second movable actuators in response to a gate control signal applied to the gates of the switch to actuate the movable actuators. The apparatus may further include a gating circuitry (32) to generate the gate control signal applied to gates of the switch. The gating circuitry may include a driver channel (40) electrically coupled to the common connector and may be adapted to electrically float with respect to a varying beam voltage, and may be electrically referenced between the varying beam voltage and a local electrical ground of the gating circuitry.Type: GrantFiled: September 28, 2012Date of Patent: February 25, 2014Assignee: General Electric CompanyInventors: Glenn Claydon, Christopher Fred Keimel, John Norton Park, Bo Li
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Patent number: 8638093Abstract: A micro-electromechanical system (MEMS) device that in one embodiment includes at least two MEMS switches coupled to each other in a back-to-back configuration. The first and second suspended elements corresponding to first and second MEMS switches are electrically coupled. Further, first and second contacts corresponding to the first and second MEMS switches are configured such that a differential voltage between the second suspended element and the second contact is approximately equal to a differential voltage between the first suspended element and the first contact. The MEMS device includes at least one actuator coupled to one or more of the first and second suspended elements to actuate one or more of the first and the second suspended elements. In one example, the MEMS device includes one or more passive elements coupled to one or more of the first and second MEMS switches.Type: GrantFiled: March 31, 2011Date of Patent: January 28, 2014Assignee: General Electric CompanyInventors: Marco Francesco Aimi, Joseph Alfred Iannotti, Christopher Fred Keimel, Steven YueHin Go